v3.0.1

Added

• Compatibility is a new enum that controls compatibility of serialization and
  deserialization. Compatibility::Full is the default compatibility level in
  v3.x, and it serializes data in a way that even Pot v1.0 deserializers can
  deserialize.

  Compatibility::V4 is a new serialization format that serializes enum
  variants without associated data in a way that allows Value deserialization
  to be done unambiguously. See #11 for an example of this issue. This bug
  only affected deserialize_any-type deserialization. Typical deserialization
  works correctly.

  Compatibility can be configured using these new APIs:

  • Config::compatibility
  • Serializer::new_with_compatibility
  • SymbolMap::with_compatibility
  • SymbolMap::set_compatibility